Honda BF115A, BF130A Outboard Motors Shop Manual., Page 381Get this manual
HONDA BFI 15A-130A
Fuel Injection method
The functioning cylinder and its top dead center position, crank angle and the engine speed are detected by the pulser coil sensor and 2, and the required amount of the fuel is injected by the respective fuel injectors of the two cylinders (group injection)The injection timing of each group is either the case or the case B, which is determined according to the conditions memorized in the ECM
NoCYLINDER OPERATION CYCLE No2 CYLINDER OPERATION CYCLE OPERATION CYCLE No4 CYLINDER OPERATION CYCLE PULSER COIL SENSOR PULSER COIL SENSOR 2